Liquid Diets: Are They a Healthy Choice?

Liquid diets, like most fad diets, are too good to be true.

Most diets that promise minimal efforts with maximum results cut corners to produce said results. And when it comes to liquid diets, the same holds true.

All of these diets cause rapid weight loss through starvation, diet pills, or very low-calorie diets (including the liquid diet). And as such, they can be dangerous for health and counterproductive to your long-term weight loss goals.

In this article you’ll find information about liquid diets, what you can consume on a liquid diet, and why they’re dangerous to your health. It is far better to choose a well-balanced diet and lifestyle change to sustain your weight loss and maintain your health.

So, What is a Liquid Diet?

A liquid diet is exactly what it sounds like: You consume all of your daily calories through liquid drinks, shakes, or other substances.

Many liquid diets restrict users to consuming only fruit or vegetable juices. Others, like Slim-Fast, offer meal replacement shakes as an alternative. Typically, users consume only three to four liquid meals per day.

Liquid Diet from Juices

There are other liquid diets that suggest a combination of liquid and solid foods. On these diets, users consume two meals that are liquid and consume a healthy, well-balanced solid meal for dinner. Sometimes these meals include snacks as well.

What Liquids Can be Consumed on a Liquid Diet?

Depending on which liquid diet you follow (i.e. full liquid diet vs. clear liquid diet), there are different allowances regarding what you can and cannot consume.

Some examples of common liquids consumed on any liquid diet include:

  • Water (plain, flavoured, and carbonated)
  • Fruit juices without pulp
  • Tea or coffee without milk, cream, or other additives
  • Gelatin
  • Milk
  • Non-dairy alternatives (almond milk, etc.)
  • Broth or filtered soup

As you can imagine, there are several other liquids you may consume. However, no two plans are quite alike and as such, it’s important to do your research as to which foods are and aren’t allowed on each.

The Main Problem With Liquid Diets: There is No Premise or Reason for Them

The main problem with liquid diets is obvious: They serve no purpose. In fact, according to Liz Applegate, director of sports nutrition at the University of California, Davis “The body does not need any help in getting rid of toxins,” rendering the liquid diet useless.

The body eliminates toxins through the liver, kidneys, colon, intestines, and lymph system. Each organ or system is designed to eliminate toxins regularly and without added assistance, leaving many wondering why liquid diet cleanses exist at all.

Five Dangers of the Liquid Diet

Even just a few days on the liquid diet cleanse can do great harm to the body. And while you will experience weight loss due to calorie restriction, you won’t keep the weight off.


Once you begin eating again, your metabolism will remain slower and cause you to gain weight. As such, even as a short-term solution, the liquid diet is both dangerous and nonsensical.

Here are five dangers of using a liquid diet to lose weight:

  • Improper Organ Function Through Carb Restriction – Your organs require carbohydrates to function and liquid diets often lack in carbohydrates. According to cardiologist Isadore Rosenfeld, MD, repeated crash diets like the liquid cleanse can increase “the risk of heart attacks [and] damage your blood vessels.”
  • Limited Protein Consumption Limiting protein intake can compromise your immune health and muscle growth. The body will often begin to break down muscles to compromise for low protein consumption.
  • Starvation Mode – Severely limiting calories can send your body into starvation mode, thereby slowing down your metabolism. This causes increased weight gain after you begin consuming a regular diet, even if healthy, once again.
  • Serious Side Effects – Low calorie intake and nutritional deficiencies on a liquid diet cause side effects like headaches, fatigue, difficulty thinking, mood swings, stomach pain, and severe hunger. This can make it incredibly difficult to function, let alone remain committed to this cleanse as a weight loss regimen.
  • Creates Unhealthy Relationship With Food – A liquid cleanse sets users up to view regular healthy habits as indulgent, although they aren’t. As such, they set chronic dieters up for further failure and calorie restriction. This compromises weight loss efforts and rewards bad habits rather than a transition to a healthy, holistic lifestyle.

Liquid Diets Serve No Purpose in Your Long-Term Weight Loss and Health Goals

While you might believe that a cleanse is the perfect way to jumpstart your new, healthy lifestyle, it isn’t. In fact, it’s the furthest thing from a healthy decision.

When you want to begin a healthy weight loss regimen, you should consider combining comprehensive dietary supplements like PhenQ with a lifestyle change. PhenQ offers you diet support by helping suppress your appetite as you make the transition to a healthier lifestyle, while increasing your energy levels for exercise and helping burn excess stored body fat.
It’s always better to commit to long-term, healthy habits for your body. So when it comes to a liquid cleanse, it’s best to pass it up for a solution that works long-term.

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